INTAKE SYSTEM DETAILS


  1. CONSTRUCTION


    1. Air Cleaner Assembly


      1. A nonwoven, full-fabric type air cleaner element is used.

      2. A resonator has been provided in the air cleaner case to reduce the amount of intake air sound.

      3. A cyclone pre-cleaner has been provided in the air cleaner inlet. This cyclone pre-cleaner has a screw shape and gathers large-sized dust particles in a dust cup by swirling the inlet air. The dust cup is removable, so the dust gathered can be disposed of.

        A01J2LUE01
        Text in Illustration
        *1 Air Cleaner Element *2 Air Cleaner Cap
        *3 Air Inlet *4 Nonwoven Fabric
        *5 Air Cleaner Case (with Built-in Resonator) *6 Cyclone Pre-cleaner
        *7 Turbinated Blade *8 Dust Cup
        *a Swirl Air Flow *b Rear View

    2. Throttle Body


      1. A linkless-type throttle body, in which the throttle position sensor and the throttle control motor are integrated, is used. It achieves excellent throttle control.

      2. A DC motor with excellent response and minimal power consumption is used for the throttle control motor. The ECM performs the duty cycle control of the direction and the amperage of the current that flows to the throttle control motor in order to regulate the opening angle of the throttle valve.

        A01J2UXE03
        Text in Illustration
        *1 Throttle Valve *2 Throttle Position Sensor
        *3 Throttle Control Motor - -

    3. Intake Air Surge Tank


      1. The intake air surge tank is made of plastic to achieve a lightweight construction.

      2. The air intake surge tank consists of upper and lower sections and contains an intake air control valve. This valve is activated by Acoustic Control Induction System (ACIS) and is used to alter the intake pipe length to improve engine performance in all speed ranges.

      3. The ACIS actuator is laser-welded onto the intake air surge tank. Many of the components are made of plastic for weight reduction.

        A01J2V7E01
        Text in Illustration
        *1 Intake Air Surge Tank *2 ACIS Actuator
        A01J2RV Laser-welding - -

        Tech Tips

        Laser-welding: In laser-welding, a laser-absorbing material (for the intake air chamber) is joined to a laser-transmitting material (for the ACIS actuator). Laser beams are then irradiated from the laser-transmitting side. The beams penetrate the laser-transmitting material to heat and melt the surface of the laser-absorbing material. Then, the heat of the laser-absorbing material melts the laser-transmitting material and causes both materials to become welded.

      4. The intake air control valve, integrated in the intake air chamber, opens and closes to change the effective length of the intake manifold in 2 stages.

      5. Equipped with an internal check valve, the vacuum tank stores the vacuum that is applied to the actuator in order to keep the intake air control valve fully closed even during low-vacuum conditions.

        A01J2KXE01
        Text in Illustration
        *1 Intake Air Control Valve *2 Vacuum Tank

    4. Intake Manifold


      1. Lightweight aluminum alloy is used for the intake manifold.

      2. This intake manifold consists of two pieces, the upper and lower, which are sealed with a rubber gasket and adhesive.

        A01J2NUE01
        Text in Illustration
        *1 Intake Manifold *2 Upper
        *3 Rubber Gasket *4 Lower
        *5 Adhesive - -

        Tech Tips


        • Do not disassemble the upper and lower portions of the two-piece intake manifold, which are sealed with a rubber gasket and adhesive. To remove the intake manifold, remove the 10 bolts that are shown in the illustration.

        • These bolts have hexagon-shape heads.

          A01J2R7E01
          Text in Illustration
          *1 Intake Manifold *2 Hexagon-shape Bolt